JPH0513626Y2 - - Google Patents

Abstract

A locking apparatus for a shift lever in an automatic transmission of a vehicle to shift the shift lever from a vehicle non-driving position to a vehicle driving position by means of an electrically operated member such as a solenoid (14) in a particular case of applying a brake pedal. When the shift lever is located in the non-driving position, a detent pin for inhibiting the shift lever from shifting is engaged with a lock recess (13) formed in a lock (11) member and the lock member is held in a lock position by means for the electrically operated member. Even though the electrically operated member fails to function due to a trouble or the like, an occupant can manually shift the shift lever from the non-driving position to the driving position to move the vehicle by traction.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial field of application) The present invention is to prevent the shift lever from being oscillated under predetermined conditions when the shift lever is located at a specific non-driving position. This invention relates to a locking device for a shift lever for an automatic transmission.

(Prior art) When parking a car with an automatic transmission, the parking brake is operated and the shift lever is shifted to the "P" position to ensure the car is in a braking state before leaving the car. . When you shift the shift lever to the "D" position in order to start the engine and start the car from the "P" position, you will pass through the "R" position on the way. It is desirable that the foot brake be depressed until the shift is completed to the "" position.

Although the above-mentioned operation of the shift lever and other operations are performed in conjunction with each other, it has been considered to lock the shift lever in the "P" position so that it cannot be oscillated if this operation is not performed.

For example, Japanese Utility Model Publication No. 62-20343 proposes a system in which the swinging operation of the shift lever is prevented when the foot brake is not operated.

(Problems to be Solved by the Invention) However, in the above-mentioned publication, the restraint of the shift lever is not released in the event of an electrical failure.

SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a locking device for an automatic transmission shift lever which, when the shift lever is locked so that it cannot be shifted from a specific non-drive position to a drive position unless certain conditions are satisfied, can forcibly release the lock if a malfunction or other problem occurs while the shift lever is locked.

[Structure of the invention] (Means for solving the problem) The locking device for a shift lever for an automatic transmission of the invention has a detent pin that is moved in one direction by pressing a push button provided on the shift lever. A detent plate that regulates the swinging operation of the shift lever through cooperative action and has a lock recess with which the detent pin moves in the other direction and is engaged when the shift lever is shifted to a specific non-driving position. and a locking member that cooperates with the detent pin engaged in the lock recess to move between a locking position that restricts the movement of the detent pin and an unlocking position that allows movement of the detent pin. a locking position where the shift lever is activated by an electric signal based on predetermined conditions when the shift lever is shifted to a specific non-driving position, and the actuator locks the locking member in the locking position; an electrically actuating member that is moved to a release position for releasing the lock; and a manual release member that forcibly moves the actuator of the electrically actuating member from the restraint position to the release position when manually operated. Has characteristics.

(Function) When the actuator of the electrically actuated member is moved to the restraining position where the locking member is restrained in the locking position while the shift lever is located at a specific non-driving position, the movement of the detent pin is restricted. As a result, the shift lever is locked in a specific non-driving position so that it cannot be oscillated. On the other hand, when the shift lever is in the locked state, if the electrically actuating member stops operating due to a malfunction, for example, operating the manual release member will force the actuator of the electrically actuating member from the locked position to the released position. This allows the locking member to move in the unlocking direction, allowing the shift lever to be unlocked.

(Example) An example of the present invention will be described below with reference to the drawings.

First, in FIG. 1, reference numeral 1 denotes a shift lever, which is provided on a machine frame 2 so as to be swingable in the direction of arrow A and in the direction opposite to arrow A, using a shaft 3 as a fulcrum.
4 is a day tent plate fixed to the machine frame 2,
This includes moving the shift lever 1 to the "P" position, "R" position, "N" position, "D" position, and "2" position along the swinging direction of the shift lever 1.
An engagement hole 5 is formed with an engagement surface for selectively positioning the position and the "L" position. A lock recess 6 is formed in the engagement hole 5 at a portion corresponding to the "P" position, which is a specific non-drive position. 7 is a detent pin provided at the lower part of the shift lever 1 so as to engage with the engagement hole 5 of the detent plate 4; this is movable in the axial direction of the shift lever 1; By pressing the push button 8 provided on the knob 1a, it is moved downward in one direction, disengaging the engagement surface of each position in the engagement hole 5, and by releasing the push button 8, it is moved downward in one direction. By moving upward of the barrel and engaging with the engagement surface at one position in the engagement hole 5, the shift lever 1 cooperates with the detent plate 4 to restrict the swinging operation of the shift lever 1.

As shown in FIG. 2, a bracket 9 is fixed to the side surface of the detent plate 4, and a locking member 11 is provided on the guide portion 10 of the bracket so as to be slidable in the direction of arrow B and the direction opposite to arrow B. There is. This lock member 11 is provided with an engagement groove 12 that opens rightward at the top in FIG. 1 and faces the lock recess 6, and a rectangular opening 13 at the bottom as shown in FIG. In addition, a convex portion 13a is provided at the upper left corner of the opening 13. A solenoid 14 is an electrically actuated member located on the back side of the detent plate 4 and fixed to the mounting member 15.The actuator 16 of this solenoid passes through the detent plate 4 and faces into the bracket 9. A bush 17 is attached to the tip. This solenoid 1
4 is connected to a control device 19 via a lead wire 18, and an ON signal is output from the control device 19 only when the shift lever 1 is located at the "P" position and a foot brake (not shown) is depressed. Accordingly, the actuator 16 is turned on (operated) and the actuator 16 is attracted in the direction of arrow C, and is turned off at other times. At the tip of the actuator 16, there is a first link 2 having a substantially T-shape.
One end of the first link 20 is rotatably connected to the first link 20 by a pin 21, and a compression coil spring 22 is disposed between the one end of the first link 20 and the side surface of the solenoid 14. Coil spring 22
The actuator 16 is urged in the opposite direction of arrow C. The first link 20 is rotatably supported within the bracket 9 by a pin 23, and when the solenoid 14 is in the OFF state, the actuator 16 is connected to the compression coil spring 22.
is moved in the opposite direction of arrow C by the urging force of , and rotated in the direction of arrow D as shown by the solid line in FIG. 13 and when the solenoid 14 is turned on, the actuator 16
is attracted in the direction of arrow C, so that the opposite arrow D
The tip 20a is rotated in the direction of the opening 13.
At the same time, the other end portion 20b faces an opening 24 provided in the bracket 9. A stopper 25 is attached to the bracket 9 so that one end of the first link 20 comes into contact when the first link 20 is rotated in the direction of arrow D.

Reference numeral 26 denotes a substantially Z-shaped second link rotatably supported in the bracket 9 by a pin 23 together with the first link 20. A protrusion 29 is attached, and this protrusion 29 is in contact with the inner surface of the bracket 9, and is biased in the direction of arrow D by the biasing force of the compression coil spring 28. One end 26 of this second link 26
As shown in FIG. 4, the end 26b is formed in a slope shape and faces the protrusion 13a, and the other end 26b protrudes outward through an opening 30 formed in the bracket 9. One end of a control wire 31 is connected to the control wire 31, and a steering lock device (not shown) is provided at the other end of the control wire 31. In the state shown in FIG. 2 in which the second link 26 is rotated in the direction of arrow D, the steering lock device is in a lockable state, and when the steering lock device is locked, the second link 26 is rotated in the direction of arrow D.
6 is prevented from rotating in the direction opposite to arrow D, and when the steering lock device is in the unlocked state, rotation of the second link 26 in the direction opposite to arrow D is permitted. Note that 32 is a retaining member inserted into the bracket 9 to prevent the pin 23 from moving.

On the other hand, in FIGS. 1 and 3, reference numeral 33 denotes a manual release member consisting of a push button provided on the frame 35 of the cover 34 provided to cover the detent plate 4 etc. from above. A convex portion 38 protruding from the lower surface is biased upward by a compression coil spring 37 disposed between the mounting plate 36 and the mounting plate 36.
penetrates the mounting plate 36 and projects downward. Below this manual release member 33, a sliding member 41 is provided on a mounting portion 39 provided on the bracket 9 via a compression coil spring 40 so as to be movable up and down. This sliding member 41 has the first link 2
5, a slope 42 is provided which comes into contact with the other tip 20b on the other end side of the second link 20, as shown in FIG.
In addition, in FIGS. 2 and 3, 43 is a pin for preventing the sliding member 41 from slipping upward.

Next, the operation of the above configuration will be explained. Now, when the steering lock device is in the locked state, the shift lever 1 is located in the "P" position, and the foot brake is not depressed, the detent pin 7 is connected to the detent plate as shown in FIG. 4, and the engaging groove 12 of the locking member 11 is engaged with the detent pin 7, so that the locking member 11 is located in the upper lock position. In this state, the steering lock device is in the locked state, so the second
The link 26 is rotated in the direction of arrow D, and the one end 2
The tip of the solenoid 6a has entered below the protrusion 13a in the opening 13 of the locking member 11, and the solenoid 14 is in the OFF state.
The actuator 16 of No. 4 is biased by the compression coil spring 22 in the direction opposite to the arrow C and positioned at the restraining position, and the first link 20 is accordingly rotated in the direction of the arrow D and the tip of the first link 20 is rotated. The portion 20a has entered the opening 13 of the locking member 11. Therefore, in this state, movement of the lock member 11 engaged with the detent pin 7 in the direction of arrow B is restrained by the first and second links 20 and 26, and the push button 8 of the shift lever 1 cannot be pressed. However, since the downward movement of the detent pin 7 is restricted, the shift lever 1 cannot be shifted from the "P" position to any other position, and therefore the shift lever 1 cannot be shifted from the "P" position. It is locked so that it cannot be rotated.

In this state, if the steering lock device is unlocked by turning the engine key, the second
Although the rotation of the link 26 in the opposite direction of the arrow D is allowed, the solenoid 14 remains in the OFF state and the first
Since the link 20 remains rotated in the direction of arrow D, the locking member 11 is restrained from moving in the direction of arrow B, and the shift lever 1 is still in the "P" position.
It is locked in position so that it cannot be swung.

When the foot brake is depressed from this state, the solenoid 14 is turned on and the actuator 16 is attracted in the direction of arrow C and positioned at the release position, and the first link 20 is accordingly moved in the opposite direction of arrow D. The distal end 20a of the first link 20 is rotated and retreated from the opening 13 of the locking member 11. When the push button 8 is pressed in this state, the detent pin 7 is moved downward (arrow B) together with the lock member 11.
As a result, the convex portion 13a in the opening 13 of the locking member 11 presses one end 26a of the second link 26, as shown in FIG. While rotating in the D direction, the locking member 11 is positioned at the unlocked position as shown in FIG. In this state, the detent pin 7 is disengaged from the lock recess 6, so by operating the shift lever 1 in the direction of arrow A while pressing the push button 8, the shift lever 1 can be moved to "P". ” can be shifted from one position to another.

When the shift lever 1 is shifted to a position other than "P", for example, to the "N" position as shown in FIG. 6, the solenoid 14 is turned off, and as shown in FIG. The actuator 16 is urged in the opposite direction of arrow C, and the tip 20a of the first link 20 comes into contact with the upper side surface of the opening 13 in the locking member 11. In this state, the tip of one end 26a of the second link 26 is also in contact with the upper side surface of the opening 13 in the lock portion 11, and the second link 26 is rotated in the opposite direction of arrow D. Therefore, the steering lock device cannot be locked and the engine key cannot be removed. When the shift lever 1 is shifted from a position other than "P" to the "P" position while pressing the push button 8, the detent pin 7 engages with the engagement groove 12 of the lock member 11, and in this state the push button is pressed. When the pressure at 8 is released, the locking member 11 moves together with the detent pin 7 in the opposite direction of arrow B (upward), the detent pin 7 engages with the locking recess 6, and the locking member 11 is positioned at the locked position. . Then, the tip 20 of the first link 20 that was in contact with the side surface of the lock member 11
When A faces the opening 13, the first link 20 moves toward the arrow D due to the biasing force of the compression coil spring 22.
direction and enters the opening 13, and one end 26a of the second link 26 enters the opening 1.
3, the second link 26 is rotated in the direction of arrow D by the biasing force of the compression coil spring 28, and the one end 26a enters the opening 13, as shown in FIG. As shown in the figure, the shift lever 1 is locked in the "P" position so that it cannot be swung. In this state, the engine key can be removed by locking the steering lock device.

On the other hand, when the shift lever 1 is locked as shown in FIGS. 1 and 2, for example, if the battery is exhausted or the solenoid 14 is malfunctioning, the second link 26 is activated when the engine key is turned. By unlocking the steering lock device by manual operation, the second link 26 can be allowed to rotate in the opposite direction of arrow D. However, even if the foot brake is depressed, the solenoid 14 is not turned on, the tip 20a of the first link 20 cannot be moved out of the opening 13 because it remains rotated in the direction of arrow D, and the shift lever 1 cannot be unlocked. In such a case, when the manual release member 33 provided on the frame body 35 is pressed, the sliding member 41 is moved downward by the convex portion 38, and the slope 4 of the sliding member 41 is moved downward.
2 is the tip 2 of the first link 20 in FIG.
0b in the direction of arrow E, the first link 20 is rotated in the opposite direction of arrow D against the biasing force of the compression coil spring 22. The tip 20a of the link 20 is connected to the opening 1.
You can leave from 3. This allows the lock member 11 to move by pressing the push button 8, so that the shift lever 1 can be released from the locked state.

According to the embodiment described above, when the shift lever 1 is in the "P" position, even if the steering lock device is unlocked, the solenoid 14 will not be turned on unless the foot brake is depressed, and the shift lever 1 will not be turned on. Since it is not possible to shift from the "P" position to any other position, if you start the car with the shift lever 1 in the "P" position, you may forget to press the foot brake and shift the shift lever 1. Inadvertent shifting to the drive position is reliably prevented. Moreover, since the steering lock device cannot be locked and the engine key cannot be removed unless the shift lever 1 is shifted to the "P" position, it is possible to prevent the engine key from being removed from the steering lock device while driving. Also, when parking the vehicle, the shift lever 1 must be shifted to the "P" position and then the engine key must be turned to the on position to remove it from the steering lock device, so the vehicle must be in a secure braking state before leaving the vehicle. It becomes possible to leave.

Further, according to the present embodiment, when the shift lever 1 is locked in the "P" position, a malfunction occurs such as the battery going out or the solenoid 1
4 becomes malfunctioning, press the manual release member 33 to release the solenoid 14.
The actuator 16 of the shift lever 1 can be moved toward the release position to release the lock member 11 and forcefully release the lock of the shift lever 1. Therefore, in the event of a failure, the shift lever 1 can be shifted from the "P" position to the "N" position. can. For example, shift lever 1
If the above-mentioned failure occurs while the shift lever 1 is in the "P" position, it will not be possible to move the vehicle by hand with the shift lever 1 in the "P" position, but the manual release member 33 The lock on shift lever 1 can be released by operating , and the shift lever can be placed in the "N" position, for example.
In the event of such a breakdown, the vehicle can be manually pushed and moved.

In the above embodiment, when the solenoid 14 is in the OFF state, the locking member 11 is restrained in the lock position to lock the shift lever 1, and when the solenoid 14 is in the ON state, the restraint is released and the shift lever 1 is locked. However, on the contrary, the shift lever 1 may be locked when the solenoid 14 is on, and the shift lever 1 may be unlocked when the solenoid 14 is off. Further, the solenoid may be of a type in which when the actuator is moved after being turned off, the actuator is held at the moving position even after being turned off.

Further, in the above embodiment, the solenoid 14 is used as an example of the electrically actuating member, but the solenoid 14 is not limited thereto, and for example, a motor may be used as the driving source. Further, in the above embodiment, the shift lever 1 is locked at the "P" position, but it may be locked at the "N" position, which is another non-driving position.

Furthermore, although a push button that is pressed is illustrated as the manual release member 33, it may be, for example, a lever that is rotated.

[Effects of the invention] As is clear from the above description, the present invention allows the swinging operation of the shift lever through cooperation with the detent pin, which is moved in one direction by pressing the push button provided on the shift lever. A detent plate is provided which has a lock recess that restricts the detent pin and engages the detent pin when it moves in the other direction when the shift lever is shifted to a specific non-driving position, and the detent plate is engaged with the lock recess. A locking member is provided that is movable between a locking position that cooperates with the detent pin to restrict movement of the detent pin and an unlocking position that allows movement of the detent pin, and when the shift lever is When shifted to the driving position, the actuator is activated by an electric signal based on predetermined conditions, and the actuator is moved to a restraining position where the lock member is restrained in the lock position and a release position where the restraint is released. The shift lever is characterized in that it includes an electrically actuating member and a manual release member that forcibly moves the actuator of the electrically actuating member from the locking position to the releasing position when manually operated. When positioned in a particular non-drive position, the shift lever can be locked so that it cannot be shifted from the non-drive position to the drive position unless a predetermined condition is met; This has an excellent effect of being able to forcibly release the lock when something like that occurs.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic side view partially cut away, Fig. 2 is a cross-sectional view of the main part in the state shown in Fig. 1, and Fig. 3 is the main part. FIG. 4 is an enlarged vertical cross-sectional view of the opening portion of the second link and locking member, and FIG. 5 is an enlarged vertical cross-sectional view of the manual release member, sliding member, and part of the first link. , FIG. 6 is a diagram corresponding to FIG. 1 in an operating state different from that in FIG. 1, and FIG. 7 is a diagram equivalent to FIG. 2 in the state of FIG. 6. In the drawing, 1 is a shift lever, 4 is a detent plate, 6 is a lock recess, 7 is a detent pin,
8 is a push button, 9 is a bracket, 11 is a lock member,
14 is a solenoid (electric actuation member, 16 is an actuator, 20 is a first link, 26 is a second link, 33 is a manual release member, 41 is a sliding member,
42 indicates a slope.

Claims (1)

[Scope of utility model registration request] A shift lever that selects one of a plurality of positions by a rocking operation, a detent pin that is moved in one direction by pressing a push button provided on this shift lever, and the detent pin work together to shift the shift lever. a detent plate having a lock recess that restricts the swinging operation of the lever and in which the detent pin moves in the other direction and is engaged when the shift lever is shifted to a specific non-driving position; and the lock recess a locking member that is moved between a locking position in which movement of the detent pin is restricted in cooperation with the detent pin engaged with the detent pin and an unlocking position in which movement of the detent pin is permitted; and the shift lever. a locking position in which the actuator locks the locking member in the locking position and a release position in which the locking member is released from the locking position. A shift lever for an automatic transmission, comprising: an electrically actuating member that is moved to a position; and a manual release member that, when manually operated, forcibly moves an actuator of the electrically actuating member from a locking position to a releasing position. locking device.